Wells Fargo Chief Executive Officer John Stumpf testifies on Capitol Hill in Washington, Tuesday, Sept. 20, 2016, before Senate Banking Committee. Stumpf was called before the committee for betraying customers' trust in a scandal over allegations that employees opened millions of unauthorized accounts to meet aggressive sales targets. (AP Photo/Susan Walsh)
Wells Fargo Chief Executive Officer John Stumpf testifies on Capitol Hill in Washington, Tuesday, Sept. 20, 2016, before Senate Banking Committee. Stumpf was called before the committee for betraying customers' trust in a scandal over allegations that employees opened millions of unauthorized accounts to meet aggressive sales targets. (AP Photo/Susan Walsh) Credit: Susan Walsh

The long-time CEO of Wells Fargo agreed on Tuesday to forfeit $41 million in performance pay three weeks after the bank acknowledged that for at least five years thousands of low-level employees allegedly set up sham accounts to meet sales quotas.

The San Francisco-based bank has repeatedly apologized for the scheme and said it had fired 5,300 employees for bad behavior and put in place more stringent internal controls. But that hasnโ€™t been enough for lawmakers who have been pushing for the companyโ€™s top leaders to give back the millions in bonuses they earned while the misconduct was occurring.

The independent directors of the Wells Fargo board announced Tuesday that they were launching an investigation into the Wells Fargoโ€™s retail business.

โ€œWe are deeply concerned by these matters, and we are committed to ensuring that all aspects of the Companyโ€™s business are conducted with integrity, transparency, and oversight,โ€ Stephen Sanger, the lead independent director, said in a statement.

John Stumpf, the chief executive, will forfeit unvested stock awards currently worth about $41 million, will not receive a salary while the investigation is ongoing and will not be eligible for a 2016 bonus, the committee said in a statement. Carrie Tolstedt, the former head of Wells Fargo community bank unit, where the misconduct took place, will give up $19 million in unvested stock awards and not be eligible for a 2016 bonus. Tolstedt had announced her retirement in July, but had initially planned to stay at the bank until the end of the year.

Both Stumpf and Tolstedt still have millions in stock and other compensation at Wells Fargo. But this action by the bankโ€™s board is, by far, the most aggressive and public effort by a financial firm since the 2008 financial crisis to show that top executives will be held responsible for misdeeds.

In early September, Wells Fargo was fined $185 million by regulators after it discovered that thousands of employees were setting up unauthorized accounts, from credit cards to checking accounts, that customers didnโ€™t ask for. In some cases, the customer was charged various fees for accounts they didnโ€™t know existed.

The case has sparked a national outcry with lawmakers pummeling Stumpf before the Senate Banking Committee last week, with one even calling on him to resign. He is to be the only witness before the House Financial Services Committee and this move could help head off some of the inevitable recrimination from lawmakers.